Miner&#39;s lamp.



PATENTED MAR. 6, 1906.

F. A. SMITH.

MINBRS LAMP.

APPLIGATION FILED 11212.20 1905.

v I EH QN NN f J mnJZA.SmiZ/ Inventor Attorneys UNITED STATES 7 PATENT OFFICE.

FRANK A. SMlTH, OF VICTOR, COLORADO, ASSIGNOR OF ONE-THIRD TO GEORGE W. THOMAS AND ONE-THlRD TO HENRY BUOKLEY, OF

VICTOR, COLORADO.

MINERS LAMP.

To all whom it may concern:

Be it known that I, FRANK A. SMITH a citizen of the United States, residing at Victor, in the county of Teller and State of Colorado, have invented a new and useful Miners Lamp, of which the following is a specification.

This invention relates to lamps in which parafiin, lard-oil, tallow, and similar illuminants, which require a certain degree of heat to melt them as they are consumed, is employed, and has for its object to provide simply-constructed and easily applied and operated devices whereby the heat of the lamp is utilized to maintain the illuminant in condition for burning.

With these and other objects in view, which will appear as the nature of the invention is better understood, the same consists in certain novel features of construction, as hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which corresponding parts are denoted by like designating characters, is illustrated the preferred form of embodiment of the invention capable of carryin the same into practical o oration.

In the rawings thus employed, igure 1 is a perspective view of the improved device. Fig. 2 is a longitudinal section ofthe same. Fig. 3 is a transverse section on the line 3 3 of Fig. 2 with the suspension means detached.

The improved device comprises a receptacle 10 for the illuminant, preferably in tubular form, and provided with a closure, 11 at one end in screw-cap form. Disposed upon the receptacle 10 is a wick-tube 12, extend ing into the same and also projecting there from. Disposed within the wick-tube is a heating member 13, of good heat-conductive material, such as copper, projecting both above and below the wick-tube, and with an offset at 14 for attachment to the wick-tube.

The wickmaterial (represented at 15) thus entirely surrounds the heating member within the Wick-tube and is extended longitudinally of the receptacle, as shown.

Disposed through the receptacle 10, preferably adjacent to the wick-tube, is an airinlet tube 16, extending above thereceptac-le, likewise into the same, with the inner end portion coiled into a lurality of whirls 17, the terminal of the ast coil being disposed close to the upper inner face of the casin 10. By this means the air is caused to trave for Letters Patent.

1995'. Serial No. 256,522.

Patented March 6, 1906.

before it emerges into the chamber above the luminant, and is warmed in its passage as the coils are partly immersed in the relatively warm material in close proximity to the heater member 19. Thus no danger exists of the entrance of cold air directly to the chamber above the luminant, and thereby lessening the influence of the heater members.

Disposed through the receptacle 10, preferably adjacent to the wick-tube, are heating members 18 19, of good heat-conductive material, such as copper, the upper ends curved, as at 20 21, around the igniting end of the wick -tube and extended in opposite directions wi thin the rece )tacle and along the bottom, as at 22 23, and coiled around the interior of the same at the ends, as at 24 25. By this means a relatively extended amount of the conductive material is within the receptacle and in direct contact with and immersed in the illuminating material and in osition to exert its influence thereon. A re atively extend ed amount of the conductor material is also within the direct influence of the flame at the igniting end of the wick-tube, so that the illuminant will be constantly maintained in a melted or combustible condition.

Attached to the receptacle 10 is a supporting member 26, preferably of wire, extended at one end into a handle 27 and at the other end into a spur 28 for insertion into a crevice or other aperture into a wall or for driving into a timber or other wood structnre and also provided with a lateral hook 29 for hanging over a projection of any kind. The device is thus capable of being supported at any of the various points in mines or other localities where required in convenient position for the operatives.

The device may be readily adapted for use in various localities, but, as above noted, is more particularly designed for the use of miners and other operatives in underground structures or constructions.

Havin thus described the invention, what is claimei is 1. A miners lamp comprising a body having a wick-tube extending through one of its walls, and an air-tube extendin through the wall of the body adjacent to ant? parallel with said wick-tube and with the inner portion coiled into a plurality of whirls disposed with the terminal of the last coil in close proximity a considerable distance within the air-tubing TDD to kthe upper side of the body and to the wicktu e.

2. A miner's lamp comprising a cylindrical body provided with a spur for attachment to a support, a wick-tube extending through one side of the body intermediate the ends, a heating member disposed centrally within and ri idly attached to the tube, an air-tube exten in% through the wall of the body adjacent to t e tube and with the inner portion coiled into a plurality of whirls and with the terminal in close proximity to the tube and the top of the body, heat-conductors adjacent the-tube and surrounding the wick and extendjn'g into and across the body in opposite directions and terminating in coils adjacent the ends of the body "In testiinbny that claim the foregoing as my own I have hereto ai'lixed my signature in the presence of two witnesses.

i FRANK A. SMITH. =Witnesses:

B. F. ZIMMERMAN, E. ANDERSON. 

